Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PSN J02580760-1021541

PSN J02580760-1021541   2011 12 27.552 *  02 58 07.60 -10 21 54.1  15.5 U    1W   7S  NGC1154   1 1

2011 12 28.567

This PSN was easily seen in a 60 second, unfiltered image taken by Roger Groom, Western Australia, with a 12" Meade SCT and an SBIG ST7 CCD binned 1x1 at estimated magnitude of 16

2011 12 29.1891

L. Elenin (Lyubertsy, Russia) confirm an apparent supernova PSN J02580760-1021541. Object visible on 3x300sec images remotely taken at ISON-NM Observatory (Mayhill, NM, USA) with 0.45-m f/2.8 telescope + CCD (KAF09000) on Dec. 29.1891. Object located at 02h 58m 07s.63 +/- 0".1, -10d 21' 55".1 +/- 0".1 (UCAC3) and have magnitude about 15.9U (mag. limit ~20.6m). Nothing is visible at this position on the POSS and POSSII images. Image of PSN J02580760-1021541 available at http://spaceobs.org/images/TOCP/PSNJ02580760-1021541-20111229.png

2011 12 29.110

PSN J02580760-1021541 This possible supernova with 6 x 10 min images using a luminance filter Time: 2011.12.29.110 Astrometry: RA 02 58 07.60 Dec -10 21 53.3 Photometry: 17.1 +/- 0.2 L These data were collected by Joseph Brimacombe, Cairns, Australia. Link to image and further information: http://www.flickr.com/photos/43846774@N02/6597503477/